LTPDA Toolbox™

Method ao/heterodyne

  HETERODYNE heterodynes time-series.
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  DESCRIPTION: HETERODYNE heterodynes time-series.
 
  The input signal is mixed down at the specified frequency. The mixed
  signal is then (optionally) low-pass filtered and (optionally) downsampled 
  to have the specified bandwidth.
 
  CALL:     b = heterodyne(a,pl)
 
  INPUTS:   pl   - a parameter list
            a    - input analysis object
 
  OUTPUTS:  b    - output analysis object containing the filtered data.
 
  Parameters Description
 
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Method Details
Access	public
Defining Class	ao
Sealed	0
Static	0

Parameter Description

Sets for this method …
Default

Default
no description
Key	Default Value	Options	Description
heterodyne
F0	[]	none	The heterodyne frequency in Hz.
T0	0	none	Modulation start time offset in s.
QUAD	'cos'	'sin' 'cos'	The quadrature to output. 'sin' or 'cos'.
BW	[]	none	The bandwidth at the output in Hz.
LP	1	1 0	Low pass filter the output data at 'bw'.
FILTER	[]	none	Filter to be used to low pass the output data. If this parameter is set, the low pass is applied regardless to the value of the 'lp' parameter
DS	1	1 0	Downsample the output data.
TIMES, SPLIT	[]	none	The time range to analyze. If not empty, sets the time interval to operate on. As in ao/split, the interval can be specified by: a vector of doubles a timespan object a cell array of time strings a vector of time objects

Example
plist('F0', [[]], 'T0', [0], 'QUAD', 'cos', 'BW', [[]], 'LP', [true], 'FILTER', [[]], 'DS', [true], 'TIMES', [[]])

Some information of the method ao/heterodyne are listed below:
Class name	ao
Method name	heterodyne
Category	Signal Processing
Package name	ltpda
VCS Version	967b0eec0dece803a81af8ef54ad2f8c784b20b2
Min input args	1
Max input args	-1
Min output args	1
Max output args	-1
Can be used as modifier	0
Supported numeric types	{'double'}

Method: ao/getdof

Method: ao/highpass

Method ao/heterodyne

Parameter Description

Default

Example